Analysis

  • max time kernel
    126s
  • max time network
    129s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240419-en
  • resource tags

    arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    06-05-2024 04:50

General

  • Target

    a1b36d724e8313710906193a8361f0a502c4b660b14c0b53e8c363e9628ef5d8.exe

  • Size

    416KB

  • MD5

    c57a53203a9857e7c8f6d3881da416dd

  • SHA1

    a5f71f2775d7805a68875064f645dc87b9accdd4

  • SHA256

    a1b36d724e8313710906193a8361f0a502c4b660b14c0b53e8c363e9628ef5d8

  • SHA512

    ee25baff124c0284dea49e8971e11cd912d8a23683cbd35cd7d380ec4e93d05877001bec61475d39fc05795e27a60608b4f677d86a2fc37517aff13d5da7c235

  • SSDEEP

    6144:EkIIKkd5F7LcRmt5tuGEBQ4ZHXbA/3TntkIKcqFWWgfLR8tai1:E3DkzF7gmt5tuPBQ6LO3btbKnuLWtf1

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.150

Attributes
  • url_path

    /c698e1bc8a2f5e6d.php

Signatures

  • Detect ZGRat V1 3 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 25 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a1b36d724e8313710906193a8361f0a502c4b660b14c0b53e8c363e9628ef5d8.exe
    "C:\Users\Admin\AppData\Local\Temp\a1b36d724e8313710906193a8361f0a502c4b660b14c0b53e8c363e9628ef5d8.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3880
    • C:\Users\Admin\AppData\Local\Temp\u2zs.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u2zs.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3368
    • C:\Users\Admin\AppData\Local\Temp\u2zs.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u2zs.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:540
      • C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
        "C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe" /eieci=11A12794-499E-4FA0-A281-A9A9AA8B2685 /eipi=5488CB36-BE62-4606-B07B-2EE938868BD1
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4924
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3880 -s 1244
      2⤵
      • Program crash
      PID:4172
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3880 -ip 3880
    1⤵
      PID:4248

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\ProgramData\Are.docx

      Filesize

      11KB

      MD5

      a33e5b189842c5867f46566bdbf7a095

      SHA1

      e1c06359f6a76da90d19e8fd95e79c832edb3196

      SHA256

      5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454

      SHA512

      f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b

    • C:\ProgramData\mozglue.dll

      Filesize

      593KB

      MD5

      c8fd9be83bc728cc04beffafc2907fe9

      SHA1

      95ab9f701e0024cedfbd312bcfe4e726744c4f2e

      SHA256

      ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

      SHA512

      fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

    • C:\ProgramData\nss3.dll

      Filesize

      2.0MB

      MD5

      1cc453cdf74f31e4d913ff9c10acdde2

      SHA1

      6e85eae544d6e965f15fa5c39700fa7202f3aafe

      SHA256

      ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

      SHA512

      dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

    • C:\Users\Admin\AppData\Local\Temp\iolo\dm\ioloDMLog.txt

      Filesize

      2KB

      MD5

      c690ef9e3e0b14b2316e88e515674ad8

      SHA1

      b428960d8b8534d85f75a24e3d083ac4bc38803b

      SHA256

      1df1596a58022d20cc7234199f230c0b7b6da262243b670735ccee42b0f9a9f6

      SHA512

      ccd2cf55f6634560ae006f4e1349dbabc622cf23d3df0d2a41d4267107642ca2fa47bd1946c7e53c6940f1878af073daf656de23e679f47c02fd0faf9deb9947

    • C:\Users\Admin\AppData\Local\Temp\iolo\dm\ioloDMLog.txt

      Filesize

      3KB

      MD5

      5d2d6f146b5571831a3085932b78cf08

      SHA1

      d1a61d101d9655a104010e299fb0405581254108

      SHA256

      e6cbf4fc5bff2c2b992407411bd77bffbe2d8eefa01d993f62fdc09de0f2ef75

      SHA512

      819e7dbb7c7470c397c25063b40533c10c4ebcfa1a46865c9cdfa956ae7bb6f5116a40e739b23385c973c7bec61c6a4735e03ad11c1be34c0fb85a80f5489332

    • C:\Users\Admin\AppData\Local\Temp\u2zs.0.exe

      Filesize

      275KB

      MD5

      31c1bdc2c9075e8c2eab9353c41c117f

      SHA1

      ab28fb009dc8c2fa244c773760109e38711b1025

      SHA256

      4e08b9b37494a1917d2ab809fff59b3a45673a80d25587e51c8749331bb56233

      SHA512

      78b995611e33b441e9ebaeecbbce3ec96bbfcac7f71bd0f639ab1e3394900be5c80893dfc8957b696609eca7ce1933d58f026c7be389795f0dcc72ad3fc35593

    • C:\Users\Admin\AppData\Local\Temp\u2zs.1.exe

      Filesize

      4.6MB

      MD5

      397926927bca55be4a77839b1c44de6e

      SHA1

      e10f3434ef3021c399dbba047832f02b3c898dbd

      SHA256

      4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

      SHA512

      cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

    • memory/540-145-0x0000000000400000-0x00000000008AD000-memory.dmp

      Filesize

      4.7MB

    • memory/540-133-0x0000000000400000-0x00000000008AD000-memory.dmp

      Filesize

      4.7MB

    • memory/3368-16-0x0000000000400000-0x0000000001A0F000-memory.dmp

      Filesize

      22.1MB

    • memory/3368-26-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/3368-117-0x0000000000400000-0x0000000001A0F000-memory.dmp

      Filesize

      22.1MB

    • memory/3368-17-0x0000000000400000-0x0000000001A0F000-memory.dmp

      Filesize

      22.1MB

    • memory/3880-75-0x0000000000400000-0x0000000001A32000-memory.dmp

      Filesize

      22.2MB

    • memory/3880-77-0x0000000000400000-0x000000000046F000-memory.dmp

      Filesize

      444KB

    • memory/3880-76-0x0000000003780000-0x00000000037EC000-memory.dmp

      Filesize

      432KB

    • memory/3880-1-0x0000000001CE0000-0x0000000001DE0000-memory.dmp

      Filesize

      1024KB

    • memory/3880-3-0x0000000000400000-0x000000000046F000-memory.dmp

      Filesize

      444KB

    • memory/3880-2-0x0000000003780000-0x00000000037EC000-memory.dmp

      Filesize

      432KB

    • memory/4924-147-0x000001F6ECAB0000-0x000001F6ECBC0000-memory.dmp

      Filesize

      1.1MB

    • memory/4924-157-0x000001F6ECE70000-0x000001F6ECEE6000-memory.dmp

      Filesize

      472KB

    • memory/4924-148-0x000001F6EBF00000-0x000001F6EBF10000-memory.dmp

      Filesize

      64KB

    • memory/4924-149-0x000001F6EBFA0000-0x000001F6EBFAC000-memory.dmp

      Filesize

      48KB

    • memory/4924-150-0x000001F6EBF90000-0x000001F6EBFA4000-memory.dmp

      Filesize

      80KB

    • memory/4924-151-0x000001F6EC010000-0x000001F6EC034000-memory.dmp

      Filesize

      144KB

    • memory/4924-152-0x000001F6EC040000-0x000001F6EC04A000-memory.dmp

      Filesize

      40KB

    • memory/4924-154-0x000001F6EC9A0000-0x000001F6ECA52000-memory.dmp

      Filesize

      712KB

    • memory/4924-153-0x000001F6EC070000-0x000001F6EC09A000-memory.dmp

      Filesize

      168KB

    • memory/4924-155-0x000001F6ECD10000-0x000001F6ECD8A000-memory.dmp

      Filesize

      488KB

    • memory/4924-156-0x000001F6ECD90000-0x000001F6ECDF2000-memory.dmp

      Filesize

      392KB

    • memory/4924-146-0x000001F6E6880000-0x000001F6EA178000-memory.dmp

      Filesize

      57.0MB

    • memory/4924-158-0x000001F6EBEE0000-0x000001F6EBEEA000-memory.dmp

      Filesize

      40KB

    • memory/4924-162-0x000001F6ECEF0000-0x000001F6ED1F0000-memory.dmp

      Filesize

      3.0MB

    • memory/4924-164-0x000001F6ECE50000-0x000001F6ECE58000-memory.dmp

      Filesize

      32KB

    • memory/4924-165-0x000001F6F1210000-0x000001F6F1248000-memory.dmp

      Filesize

      224KB

    • memory/4924-166-0x000001F6F11D0000-0x000001F6F11DE000-memory.dmp

      Filesize

      56KB

    • memory/4924-167-0x000001F6F1290000-0x000001F6F129A000-memory.dmp

      Filesize

      40KB

    • memory/4924-168-0x000001F6F1B20000-0x000001F6F1B42000-memory.dmp

      Filesize

      136KB

    • memory/4924-169-0x000001F6F2070000-0x000001F6F2598000-memory.dmp

      Filesize

      5.2MB

    • memory/4924-173-0x000001F6F18A0000-0x000001F6F18AC000-memory.dmp

      Filesize

      48KB

    • memory/4924-172-0x000001F6F18F0000-0x000001F6F1940000-memory.dmp

      Filesize

      320KB

    • memory/4924-174-0x000001F6F1940000-0x000001F6F1962000-memory.dmp

      Filesize

      136KB

    • memory/4924-175-0x000001F6F1970000-0x000001F6F198E000-memory.dmp

      Filesize

      120KB